Question 288831
N(t)=-3t^3+23t^2+8t
a)Rewrite the formula by factoring the right-hand side completely.
N(t) = -t(3t^2 -23t -8)
N(t) = -t(3t^2-24t + t-8)
N(t) = -t(3t(t-8) + (t-8))
N(t) = -t(t-8)(3t+1)
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b)Use the factored version of the formula to find N(3)
N(3) = -3(-5)(10) = 150
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c)Use the accompanying graph to estimate the time at 
which the workers are most efficient.
Graph not shown
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d)Use the accompanying graph to estimate the maximum number of components assembled per hour during an 8-hour shift.
Graph not shown
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Cheers,
Stan H.